Upgrade to Ubuntu 18.04.1 from 16.04.5 breaks terminal keybindings in Unity

[Damiön la Bagh]

Steps to reproduce
Upgrade a Ubuntu 16.04.5 machine to 18.04.1
Install LightDM (gdm3 doesn't allow me to log into my system)
Install Unity (gnome3 won't start after one use)
Try to open a terminal to do anything.
CTRL+ALT+T
Nothing happens.

What should have happend
A terminal should have opened.

This is the Main most used keybinding for Ubuntu it should always be there, like CTRL+ALT+DEL on a windows machine!

ProblemType: Bug
DistroRelease: Ubuntu 18.04
Package: unity 7.5.0+18.04.20180413-0ubuntu1
ProcVersionSignature: Ubuntu 4.15.0-32.35-generic 4.15.18
Uname: Linux 4.15.0-32-generic x86_64
NonfreeKernelModules: zfs zunicode zavl icp zcommon znvpair nvidia_modeset nvidia
.proc.driver.nvidia.gpus.0000.06.00.0: Error: [Errno 21] Is een map: '/proc/driver/nvidia/gpus/0000:06:00.0'
.proc.driver.nvidia.registry: Binary: ""
.proc.driver.nvidia.version:
 NVRM version: NVIDIA UNIX x86_64 Kernel Module 390.48 Thu Mar 22 00:42:57 PDT 2018
 GCC version: gcc version 7.3.0 (Ubuntu 7.3.0-16ubuntu3)
.proc.driver.nvidia.warnings.fbdev:
 Your system is not currently configured to drive a VGA console
 on the primary VGA device. The NVIDIA Linux graphics driver
 requires the use of a text-mode VGA console. Use of other console
 drivers including, but not limited to, vesafb, may result in
 corruption and stability problems, and is not supported.
.tmp.unity_support_test.0:

ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity:Unity7:ubuntu
Date: Wed Aug 15 23:02:16 2018
DistUpgraded: 2018-08-15 21:57:03,781 DEBUG icon theme changed, re-reading
DistroCodename: bionic
DistroVariant: ubuntu
DkmsStatus:
 fwts-efi-runtime-dkms, 18.03.00, 4.15.0-32-generic, x86_64: installed
 fwts-efi-runtime-dkms, 18.03.00, 4.4.0-131-generic, x86_64: installed
 nvidia, 390.48, 4.15.0-32-generic, x86_64: installed
 nvidia, 390.48, 4.4.0-131-generic, x86_64: installed
GraphicsCard:
 NVIDIA Corporation GM200 [GeForce GTX 980 Ti] [10de:17c8] (rev a1) (prog-if 00 [VGA controller])
   Subsystem: NVIDIA Corporation GM200 [GeForce GTX 980 Ti] [10de:1151]
InstallationDate: Installed on 2015-11-15 (1004 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-32-generic root=/dev/mapper/vg0-root ro noprompt persistent quiet splash vt.handoff=1
SourcePackage: unity
UpgradeStatus: Upgraded to bionic on 2018-08-15 (0 days ago)
dmi.bios.date: 08/15/2016
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: P3.30
dmi.board.name: X99 Extreme11
dmi.board.vendor: ASRock
dmi.chassis.asset.tag: To Be Filled By O.E.M.
dmi.chassis.type: 3
dmi.chassis.vendor: To Be Filled By O.E.M.
dmi.chassis.version: To Be Filled By O.E.M.
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrP3.30:bd08/15/2016:svnToBeFilledByO.E.M.:pnToBeFilledByO.E.M.:pvrToBeFilledByO.E.M.:rvnASRock:rnX99Extreme11:rvr:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.:
dmi.product.family: To Be Filled By O.E.M.
dmi.product.name: To Be Filled By O.E.M.
dmi.product.version: To Be Filled By O.E.M.
dmi.sys.vendor: To Be Filled By O.E.M.
version.compiz: compiz 1:0.9.13.1+18.04.20180302-0ubuntu1
version.libdrm2: libdrm2 2.4.91-2
version.libgl1-mesa-dri: libgl1-mesa-dri 18.0.5-0ubuntu0~18.04.1
version.libgl1-mesa-glx: libgl1-mesa-glx 18.0.5-0ubuntu0~18.04.1
version.nvidia-graphics-drivers: nvidia-graphics-drivers-* N/A
version.xserver-xorg-core: xserver-xorg-core 2:1.19.6-1ubuntu4
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.0.1-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
xserver.bootTime: Wed Aug 15 22:48:13 2018
xserver.configfile: default
xserver.errors:

xserver.logfile: /var/log/Xorg.0.log
xserver.outputs:

xserver.version: 2:1.19.6-1ubuntu4

[Khurshid Alam (khurshid-alam)]

Duplicate of bug #1188569

Please try with fresh install. Try restarting unity-settings-daemon (unity-settings-daemon -r).

[Damiön la Bagh (kat-amsterdam)]

The point of this bug is that it happens after an Upgrade.
Something in the Upgrade process is breaking this behavior.

Asking one to do a fresh install is not a reasonable solution.

unity-settings-daemon -r

** (unity-settings-daemon:31635): WARNING **: 00:35:09.475: Name taken or bus went away - shutting down

[Khurshid Alam (khurshid-alam)]

@Damiön la Bagh

Upgrade to 18.04 for Unity is not supported any more. Unity is not the default desktop anymore. After upgrade you should have gnome-shell as default desktop. Not Unity. In your case unity-settings-daemon is crashing and hence nothing should work.

[Damiön la Bagh (kat-amsterdam)]

@Khurshid Alam

Unity is still supported as a community project.

 gnome-shell does not work in production for my business as it doesn't respond correctly to a touchscreen and I can't just stop my entire company and wait for months for a fix.

The whole point is that we can choose whatever desktop environment that fits our needs. Unity migrated forward with 18.04 and should work exactly as it did in 16.04.

The whole point of an upgrade is to improve the system. gnome-shell actually breaks Ubuntu to an unusable state. For businesses running in production this is not a reasonable expectation to just use gnome-shell. When a properly working desktop environment is available, namely Unity.

[Khurshid Alam (khurshid-alam)]

> Unity migrated forward with 18.04 and should work exactly as it did in 16.04.

Except it did not migrate forward. Certainly not for upgrade from 16.04. Nobody tested upgrade path. We community projects member took it late in 18.04 cycle. As a result Unity (actually compiz) upgrade is broken. Our goal is to keep Unity running for 18.04 and beyond.

You can still use Unity. But you will need a fresh install. Upgrade from 16.04 most likely will not work. You can take backup your documents and restore everything later.